As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND ON THE LT SHEAR WEB AT FRAME 88. MAINTENANCE REMOVED AND REPLACED THE LT SHEAR WEB AT FRAME 88 IAW EMB 190 SRM 51-42-01. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.